kite camera
DESCRIPTION
Kite Camera. Group Members: Marc Bland Mark Burchill Walter Perry Robert Popovitch Andrew Theriault. Presentation Outline. Existing Technology Design Objectives and Goals Components for Design Cost Analysis Schedule Conclusions Questions. Existing Technology. - PowerPoint PPT PresentationTRANSCRIPT
Kite Camera
Group Members:Marc Bland
Mark BurchillWalter Perry
Robert PopovitchAndrew Theriault
Presentation Outline
• Existing Technology• Design Objectives and Goals• Components for Design• Cost Analysis• Schedule • Conclusions• Questions
Existing Technology• Kite Aerial
Photography (KAP)
– Began with Hobbyist– Still-Photography– Simple suspension
systems
Design Objectives and Goals
• Design a controllable aerial photography system to accurately capture pictures and video– construct suspension and cradle system – maximize range of motion with
motors/electronics• Live streaming video
Components for Design
• Kite• Camera Cradle• Cradle Suspension• Camera• Video Transmission• Pan & Tilt Controls
Kites• Winged-Box
– Stable in heavy winds due to it’s boxed frame
– Flies in light winds due to its’ winged design
• Rokkaku– Solidly built– Adjustable tensioning– Winds ranging from 4-8
mph
Kite Selection• Parafoil
– Steady and easy to control
– Inexpensive– Easily assembled– Excellent lift– Winds ranging from
8-25 mph– 17 square feet
Cradle System
• Cradle design crucial for maximum camera control
• Goal to obtain pan and tilt motions• Critical Design Characteristics
– Center of Gravity– Range of Motion– Support Type
Cradle Design Types• LL Design
– Most simple design– Lightweight– Supports only
smaller cameras– Smaller range of
motion
Cradle Design Types• UU Design
– Little more supportive
– Capable of heavier weights
– Larger range of motion
– Tilting motion only
Cradle Design Types• UU Hover Variation
Design– Most complex– Largest range of
motion– Capable of horizontal
and vertical motions (tilt and pan)
Cradle System Designs
Suspension Types
Pendulum Picavet
Pendulum
• Made of two rigid tubes• Hard to control camera’s movements• Uncontrollable swinging leads to
inaccurate and blurry pictures
Picavet• Contains a self-leveling platform that resists
rotation• Suspension line attached various ways• Small cross resists rotation better than a large
one
Attaching the Picavet Suspension• Ball bearing
• Pulleys
• Eye holes
•Cord locks
Attaching the Suspension to the Kite
• Prussik Knot
• Line Tree
• Brooxes Hangup
Threading the Line
Threading SequenceA1 - 1 - B1 - R - 4 - A2 - R - 2 - B2 - 3 - A1.
Cameras• Snap Shot
– Takes still images– Blind shots– Smaller
• Video– Allows for live
streaming video– More expensive
Digital Video Cameras• JVC GR-D70U
– 16x optical zoom– Sports mode– Li ion battery
• Mustek DV 5500– Lightweight– Cost effective ($100)– Li ion battery
Video Transmission• Types
– Fiber Optic Cable
– Wireless RF Transmitter
– S-Video Cable
Fiber Optic Transmitter• Includes a transmitter and receiver• Power supply needed for transmitter
Wireless RF Transmitter• Includes a
transmitter and receiver
• No mess with wires• Quality may not be
great
Pan and Tilt Controls• Controlled by PIC (Peripheral Interface Controller)
– PIC16F873
Pan and Tilt Controls
• PIC will be wired up kite line to power 180O servo and a 360O servo or stepper motor attached to the camera cradle
Cost AnalysisMaterials Quantity Cost ($)Kite 1 200Camera 1 250Camera cradle 1 30Cradle suspension 1 30Servo (one 180deg, one 360deg rotation) 2 100#12 THHN Cu wire (stranded) 100 ft. 20Fiber optic cable transmission 1 200Power supply 1 50
Total: 880
Schedule
Conclusion
• Integrated systems of Kite Camera• Funding is a possible problem• Testing and experimentation is vital
Questions
???
? ? ?? ? ?
? ?